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Show HN: Pole Clock, a single 24h clock with multiple timezones

poleclock.com

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Re: Show HN: Pole Clock, a single 24h clock with multiple timezones

#152
post #87

Earlier quoted context omitted.

Another consideration might be to switch 24 to 0 or 00. I've seen a lot of 24 hour clocks that use 24 and I'm not sure why this ever happened since there is no time in hour 24. 12:15 AM/PM is a real thing for a 12-hour clock, but 24:15 isn't, as far as I'm aware. Unless some people consider that to be the very first hour of the day, but that seems like it would invite more confusion.

Tangently related, but working timetables on the London Underground run to 2330, 2345, 2359, but then rather than going to 0000, because the post midnight services (until about 0400) are on the previous date, they then go 2359 2400 2401 And on to 2459, 2500, 2501 etc. (At least they used to before 24 hour running, not sure about now)

I saw this often in open/close times on bars in Japan in my trip there a couple weeks ago. I saw as high as 28:00

Re: Show HN: Pole Clock, a single 24h clock with multiple timezones

#153

If anyone wants to wear a 24-hour dial on their wrist: * https://romeoswatches.com/the-5-best-24-hours-watches-buying... * https://svalbard.watch/pages/Svalbard_24-hour_watches.html * https://vintagewatchinc.com/24-hour-watch/ * https://en.wikipedia.org/wiki/24-hour_analog_dial#Watches

I like the simplicity and design of the Slow (https://www.slow-watches.com) watches mentioned in the first list you link in your post.

It reminds me of the Botta Design Uno 24: https://www.botta-design.de/en/products/uno-24-plus-titan

I appreciate the clear delineation between "day" and "night" sides of the face, the meaningful position of the date complication, and a hour hand design that makes it possible to see down to ~5m increments.

Re: Show HN: Pole Clock, a single 24h clock with multiple timezones

#154
post #76

If anyone wants to wear a 24-hour dial on their wrist: * https://romeoswatches.com/the-5-best-24-hours-watches-buying... * https://svalbard.watch/pages/Svalbard_24-hour_watches.html * https://vintagewatchinc.com/24-hour-watch/ * https://en.wikipedia.org/wiki/24-hour_analog_dial#Watches

And a good brand for single-hand watches: http://meistersinger.com/

I may have missed it, but it does not look like Meister Singer makes a version with a 24h dial, is that correct?

I think that would be the main draw of a single hand watch for me.

Re: Show HN: Pole Clock, a single 24h clock with multiple timezones

#155
post #125

Instead of dividing by two equal halves day and night, make this dependent on sunrise and sunset of the location, would be helpful to know at a glance the actual day hours and night hours

I built a clock that does just that. It also shows twilight times and the position and phase of the moon:

https://sunclock.net/

Re: Show HN: Pole Clock, a single 24h clock with multiple timezones

#156

If anyone wants to wear a 24-hour dial on their wrist: * https://romeoswatches.com/the-5-best-24-hours-watches-buying... * https://svalbard.watch/pages/Svalbard_24-hour_watches.html * https://vintagewatchinc.com/24-hour-watch/ * https://en.wikipedia.org/wiki/24-hour_analog_dial#Watches

I like "Yes" watches: https://www.yeswatch.com

They use an LCD backdrop behind the physical hour hand to show exactly when sunrise and sunset is for today, rather than a fixed 6-6 shadow. Really nice idea.

Re: Show HN: Pole Clock, a single 24h clock with multiple timezones

#157
post #87

Two ideas to consider adding to this cool concept: 1. Could there be an option to place 00:00 at the top instead of the bottom? It looks like both positions have been used for analog 24 hour clocks. https://en.wikipedia.org/wiki/24-hour_analog_dial 2. Could there be an option to set the background to be a polar-projected world map ( e.g. United Nations emblem) that rotates to align with the turning of the hour hands?…

Another consideration might be to switch 24 to 0 or 00. I've seen a lot of 24 hour clocks that use 24 and I'm not sure why this ever happened since there is no time in hour 24. 12:15 AM/PM is a real thing for a 12-hour clock, but 24:15 isn't, as far as I'm aware. Unless some people consider that to be the very first hour of the day, but that seems like it would invite more confusion.

24:00 is a real time. See: https://en.wikipedia.org/wiki/24-hour_clock#Midnight_00:00_a...

> there is no time in hour 24

Doesn't matter. 24 marks the end of the day.

One advantage of using 24 instead of 0 is it makes it immediately obvious that this is a 24 hour clock. Otherwise you have to read the 0, see the 23 next to it, and infer that it's 24 hours, which takes a moment if you are not expecting it.

Re: Show HN: Pole Clock, a single 24h clock with multiple timezones

#158

Earlier quoted context omitted.

Tangently related, but working timetables on the London Underground run to 2330, 2345, 2359, but then rather than going to 0000, because the post midnight services (until about 0400) are on the previous date, they then go 2359 2400 2401 And on to 2459, 2500, 2501 etc. (At least they used to before 24 hour running, not sure about now)

23:59, 1:00:00, 1:00:01 would have been better.

The latter two could be confused with hour:minute:second

Re: Show HN: Pole Clock, a single 24h clock with multiple timezones

#159

I like it and am interested to see how this evolves. I would love it to replace the simple clock on my iPhone screen. For my own purposes I would like to see accurate day/night line that moves with the map.

Me too! Issue is that different longitudes have different sunrise/sunset times, so I went with an arbitrary cut down the middle to get a rough idea of how people in other timezones are feeling right now (tired, close to dark, etc)

Sunrise/sunset times do vary with longitude (depending on how close you are to the centre of the timezone you 'should' be in, and also summer time), but the biggest variation is with latitude. Especially near the solstices like now.
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